Oil distributor



May 4,1926. 1,583,099

G. T. RAYFIELD OIL DI STRIBUTOR File y 23, 1923 2 Sheets-Shet 1 May 4,1926.

G T. RAYFIELD OIL DISTRIBUTOR Filed July, 23, 1923 2 Sheets-Sheet 2Patented May 4, 1926.

UNITED srarss PATENT OFFICE.

GEORGE T. RAYFIELD, OF CHICAGO, ILLINOIS, ASSIGNOR T CHAMPION PNEUMATICMACHINERY COMPANY, OF CHICAGQ'ILLINOIS, A CQRPORATION OF ILLINOIS.

OIL DISTRIBUTOR.

Application filed July 23, 1923. Serial No. 653,155.

To all whom it may concern:

Be it known that I, Gnonou T. RAYFIELD, a citizen of the United States,and a resident of Chicago, of the county of Cook and State of Illinois,have invented certain new and useful Improvements in an Oil Distributor;and I hereby declare that the following is a full, clear, and exactdescription of the same, reference being had to the accompanyingdrawings, and to the numerals of reference marked thereon, which form apart of this specification.

This invention relates to a splash lubricator for properly lubricatingparts of a machine.

It is an object of this invention to provide in connection with thesplashing mechanism, proper receiving and drip surfaces which guide thelubricant to the desired points and feed it in proper proportions oramounts to the parts to be lubricated.

It is a further object of this invention to proportion and construct thedrip surfaces so that only the proper amount of lubricant will besupplied to the working parts.

With these and other objects in view which will become more apparent inthe following description and disclosures this invention comprises thenovel mechanisms and combinations hereinafter described and moreparticularly pointed out and defined in the appended claim.

In the accompanying drawings which illustrate a preferred embodiment ofthis invention and in which similar reference numerals refer to similarfeatures in the different views- Fig. 1 is an elevational view of acompressor partly in section showing the application of this invention.

Fig. 2 is a fragmentary sectional view showing the drip surfaces uponthe upper interior wall of the compressor and is a rear View withrespect to Fig. 1.

Fig. 3 isa section on the line 33 of Fig. 2.

Fig. 4: is a fragmentary sectional view upon the line 4- looking in thedirection of the arrows pointing to the right.

Fig. 5 is a sectional view upon the line 5-5 coincident with the line 44but looking in the direction of the arrows pointing to the left.

As shown in the drawings:

7 reciprocate.

In referring now to the drawing it will be observed that my inventionhas been illustrated in connection with an air compressor having'a pairof alined cylinders in which the pistons 1 and 2 are adapted to v Thesepistons are connected for conjoint reciprocation to a crank or the likeon shaft 3 which is journale'd' in the walls of the casing. Theconnection of the pistons to the shaft 3 comprises well known means anddoes not constitute a part of this invention.

The invention concerns itself with means for properly oiling andlubricating the pistons and shaft 3, and to this end, a

splasher 4: is secured adjacent one end of the shaft 3 for rotationtherewith for splashing the oil in the oil chamber '5 upwardlyvconnection of the pistons with shaft 3.

The drip surfaces 6, 7 and 8 extend from the plane of rotation of thesplasher 4' inwardly over the pistons 1 and 2 and their connections withthe shaft 3. These drip surfaces are best shown in Figs. 2, 3, 4: and 5;they are formed upon humps or pro ections integral with the casting.With respect to the plan of rotation of the splasher 4, theseprojections slope inwardly and downwardly so that the oil orlubricantwil] creep or flow inwardly over said'surfaces and drop fromthe edges thereof upon the parts to be lubricated. The lower margins ofthe projections 6 and 8 are rounded and comparatively narrow andconverge inwardly, as shown in Figs. 2 and 3 for this purpose, and theyhave agreater slope than the projections 7 which has a broader lowermargin. On account of these structural features, the lubricatingcapacity of the surfaces 6 and 8 are less than that of'the surface 7more lubricant being required for the bearings than for the pistons.

lVith reference to Fig. 1, the splasher 4 is designed to rotate in aclockwise direction, and during its rapid rate of rotation it willsplash the lubricating oil which is generally used against the higherportions of the drip surfaces, as is obvious. The oil will then creepinwardly and downwardly over the projections and drop from the rearportions of the margins thereof over the parts to be lubricated. Theslope and dripping margins of these projections are designed so thatthey will feed the proper amounts of usual lubricating oil. It is,however, apparent that the viscosity of the oil determines the necessarystructure of the dripping surfaces for a desired feed and no definiterule can be laid down. The particular structural design of the drippingsurfaces must be empirically determined on account of the differentviscosity of lubrieating oils in connection with the feeding capacity ofthe splasher. This invention is designed to broadly teach how differentparts may be properly lubricated by the splash system and how the amountof lubrication may be controlled.

However, by varying the size of the oil feeding ribs, the oil suppliedto various points may be varied for a given viscosity.

I am aware that numerous details of construction may be varied through awide rangewithout departing from the principles of this invention, and Itherefore do not purpose limiting the patent granted otherwise thannecessitated by the prior art.

I claim as my invention:

In a splash lubricating system for a compressor having a casing providedwith a central lubricant chamber and opposed pistons, a rotary splashersupported in said chamber, an inwardly and downwardly sloping projectionon said casing adjacent each piston and an intermediate inwardly anddownwardly sloping projection on said casing for the purpose set forth.

In testimony whereof I have subscribed my name.

GEORGE T. RAYFIELD.

hereunto

